Lee sturges



(No Model.)

' L. STURGES.

GHURN.

' No. 529,884.- Patented Nov. 27, 1894.

UNITED STATES PATENT OFFICE.

LEE STURGES, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE CHICAGO STAMPING COMPANY, OF SAME PLACE.

c U R'N.

SPECIFICATION forming part of Letters Iatent No. 529,884, dated November 27, 1 894.

Application filed June 28, 1894. Serial No. 615,968. (No model.)

To all whom it may concern:

Be it known that I, LEE STURGES, a citize of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Churns, of which the following is a specification, reference being had to the ac companying drawings, which are made a part hereof, and in which- Figure l is a plan view of the improved churn. Fig. 2 is a Vertical section thereof on the line 2-2 Fig. 1. Fig. 3 is a Vertical section of a portion thereof, on a larger scale, on the line 3-3,.Fig. 1. r I

In that class of rotary churns in which the receptacle for the cream is rotated about a horizontal axis it is ofcourse necessary that it be closed sufficiently tight to prevent leakage. The present invention relatesprincipally to closures. for churns of this class. It relates in part also to the peep hole or window through which the progress of the prooess may be watched. So far as the invention relates to the closure its object is to make possible and practicable the constructing of both the body and the cover of the churn of sheet metal and in carrying out this object of the invention I have improved the construction of both the body and the cover.

The invention consists in the features of novelty that are particularly pointed out in the claims.

In the drawings, A represents the body provided with laterally projecting trunnions B that are journaled in bearings 0 supported by a frame of suitable construction, one of said trunnions being continued beyond the bearing and squared for the reception of a crank D by which the churn may be rotated. The frame shown in the drawings consists of four legs 0, arranged in two pairs which converge upward and are united at their upper ends to the boxes 0, and four braces c which couple the pairs of legs together. These braces are arranged in pairs (one pair upon each side of thevertical plane of the axis of the churn) and the braces of each pair are arranged in the form of an X with a swivelbolt E at their intersection, their ends being secured to the legs by removable bolts E and E. For convenience in shipping or storing the frame may be folded up (the two pairs of legs being brought together) if the bolts E are first removed.

The body of the churn is made of sheet metal and its upper edge is bent over to form a flange a which extends outward and downward over a metallic hoop or band E which surrounds the body at the top, the hoop being preferably provided with a groove f for receiving the down-turned portion of the flange.

, This hoop carries the ears Gin which are pivoted the bails H by which the coverI is held in place.

The cover is made of sheet metal and has a sunken portion *5 resulting in a shoulder 11 and a flange 't' radiating from it, and the outer margin of this flange is turned down to form a second flange 2' of hoop shape. The shoulder t" and flanges 2' and i result in an annular groove or channel in which fits a packing ring I which is preferably of cork and formed in sections but may be of any other suitable material and continuous. In order to more securely hold this ring in place the shoulder t" is offset, so as to make the groove for the packing-ring undercut, the resulting shoulder 11 being so located as to engage and hold the ring in place.

Kis a heavy iron or steel ring which rests upon the sunken portion iof the cover and fits snugly against the shoulder 41', said ring being secured in place by solder and being preferably of such width that it projects above the flange z' The object of this ring is to strengthen the cover-and especially the peripheral portion thereof-and to provide a bearing for the bails H and hold them out of contact with the flange 1, which flange, being of sheet metal and supported only by the yielding packing-ring,'they would surely injure, if they bore upon it. The bails when in the positions shown in the drawings may be engaged by a cross-head L perforated for the passage of a screw M secured at its lower end to the cover andadapted to receive a hand-nut N by which the cross-head may be pressed upon the bails and the bails be thereby made to press upon the cover (through the medium of the ring K) with the force necessary for securely holding the cover in place. The strain thus produced is upward upon the hoop F and the sheet metal portion of the body is relieved of all strain, the effect of the operation being to draw the hoop F and the cover together, and clamp the flange a of the body between them.

In the cover is formed a suitable peephole 0 and the margin of the metal around it is turned back to form a flange 0 which e11- gages a corresponding flange formed on the interior of a threaded ring P. In this ring is screwed, for the purpose of closing the hole, a plug constructed of a ring Q having threads adapted to engage the threads of the ring P and having internal and external flanges Q and Q a second ring q having internal and external flanges q and g and a piece of glass Q clamped between the flanges Q and q, the space between the rings Q and q and around the edge of the glass being filled in with plaster of paris, or other suitable cement, as shown at 1 and the margin of the flange being spun over the margin of the flange Q I have described my invention as being an improvement in churns, but I reserve the right to apply it to vessels or receptacles for other purposes.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination with the body of a vessel and the cover thereof, of a hoop surrounding the body at top and suitable devices for holding the cover in place, said devices being suitably attached to said hoop and the body of the vessel being provided with a flange which extends outward over the hoop and forms a seat for the cover, substantially as set forth.

2. The combination with the body of a vessel and the cover thereof, of a hoop surrounding the body at top and suitable devices for holding the cover in place, said devices being suitably attached to said hoop and the body of the vessel being provided with a flange which extends outward and downward over the hoop and forms a seat for the cover, substantially as set forth.

8. The combination with the body of a vessel and the cover thereof, of a hoop surrounding the body at top, bails suitably attached to said hoop and adapted to extend inward over and engage the cover, and means attached to the cover for engaging the bails, and drawing them down on the cover, the body being provided with a flange which extends outward over the hoop and forms a seat for the cover, substantially as set forth.

4. The combination with the body of a vessel, of a cover therefor, said cover being formed of sheet metal and having a sunken portion, resulting in a shoulder surrounding the sunken portion and a flange extending outward from the shoulder, and a strengthening ring secured to the shoulder, substantially as set forth.

5. The body of a vessel and a cover therefor, said cover being formed of sheet metal and having a sunken portion, resulting in a shoulder surrounding the sunken portion and a flange extending outward from said shoulder, in combination with a strengthening ring bearing against the sunken portion and projecting above the shoulder, and devices for holding the cover in place, said devices engaging the strengthening ring, substantially as set forth.

6. The combination with the body of a vessel, of a cover therefor, formed of sheet metal and having a sunken portion, resulting in a shoulder surrounding said sunken portion and a flange extending outward from said shoulder, the outer margin of said flange being turned down to form a second flange, said flanges and shoulder resulting in an annular groove, and a packing ring fitting in said groove,one wall of the groove having a shoulder engaging the ring and holding it in place, substantially as set forth.

7. A plug for peep-holes having, in combination, an outer screw-threaded ring having internal and external flanges, an inner ring having internal and external flanges, and a pane of glass clamped between the said internal flanges, one of the external flanges being spun over the margin of the other, substantially as set forth.

LEE STURGES.

lVitnesses:

W. H. BURN, L. M. HOPKINS. 

